Zyxel-communications ADSL2+ Ethernet/USB Gateway 660RU-Tx Series Manual de usuario descargar pdf (Pagina 247)

Prestige 660RU-Tx Series User’s Guide

Appendix A 246

Appendix A

Splitters and Microfilters

This appendix tells you how to install a POTS splitter or a telephone microfilter.

Connecting a POTS Splitter

When you use the Full Rate (G.dmt) ADSL standard, you can use a POTS (Plain Old

Telephone Service) splitter to separate the telephone and ADSL signals. This allows

simultaneous Internet access and telephone service on the same line. A splitter also eliminates

the destructive interference conditions caused by telephone sets.

Install the POTS splitter at the point where the telephone line enters your residence, as shown

in the following figure.

Figure 168 Connecting a POTS Splitter

1 Connect the side labeled “Phone” to your telephone.

2 Connect the side labeled “Modem” to your Prestige.

3 Connect the side labeled “Line” to the telephone wall jack.

Telephone Microfilters

Telephone voice transmissions take place in the lower frequency range, 0 - 4KHz, while

ADSL transmissions take place in the higher bandwidth range, above 4KHz. A microfilter acts

as a low-pass filter, for your telephone, to ensure that ADSL transmissions do not interfere

with your telephone voice transmissions. The use of a telephone microfilter is optional.

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Zyxel-communications ADSL2+ Ethernet/USB Gateway 660RU-Tx Series Manual de usuario Pagina 247